Tasting Room Manager Francesca Huson and Wine Club Manager Alexandra Sartori of White Oak Winery at the San Francisco Chronicle Wine Competition Public Tasting on Feb. 15, 2014, at Fort Mason in San Francisco.

Winemakers Steve Melander and Steve Burman of 3 Steves Winery, co-winner of the red sweepstakes, at the San Francisco Chronicle Wine Competition Public Tasting on Feb. 15, 2014, at Fort Mason in San Francisco.

Enologist Megan Hughes and husband Shane Huges of Barnard Griffin Winery, winner of the pink sweepstakes, at the San Francisco Chronicle Wine Competition Public Tasting on Feb. 15, 2014, at Fort Mason in San Francisco.

Kevin Baldacchi (Marketing) and Matt Mills (Direct to Consumer) of Baldacchi Winery, winner of the white sweepstakes, at the San Francisco Chronicle Wine Competition Public Tasting on Feb. 15, 2014, at Fort Mason in San Francisco.

Nick Ferrante, owner and winemaker at Ferrante Winery, winner of the dessert sweepstakes, at the San Francisco Chronicle Wine Competition Public Tasting on Feb. 15, 2014, at Fort Mason in San Francisco.

Events Manager Jeanne Bradley and Visitor Center Manager Dean Vanech of Domain Carneros, co-winner of the sparkling sweepstakes, at the San Francisco Chronicle Wine Competition Public Tasting on Feb. 15, 2014, at Fort Mason in San Francisco.